Masking device for cinematograph apparatus.



WHNESSES H. H. ANDERSON.

MASKING DEVICE FOR GINEMATOGRAPH APPARATUS. APPLICATION FILED NOV, 24, 1913.

2 SHEETSSHBET l.

W. H. Amdmsom h M135 2 wwwfifi mbaw 55 Patented F b. 2, 191,5.

W. H. ANDERSON.

MASKING DEVIGB POR GINEMATOGRAPH APPARATUS.

' APPLICATION TILED NOV.24 1913.

1,127,155. Patented F9112, 1915.

2 SHEETSSHEET 2.

W. H Arzdzrson, WiTNESSES iNVENTOR WC/ 1110mm would necessarily ensue Willh a reduction 0i order to mask the p ctures after the move .ment of the film -hhd taken place, then a corresponding reduction of time of exposure of the screen to the light of the lantern the brilliancy of the picture. The masking apparatus herein described overcomes this drawback as the retarding of the slide 155 1 allon's the upward and downward movement of the 'pinion 151 to beefl'ectcd but Without spindle, an idle wheel gearing with the pinion, a driving wheel gearing with the idle Wheel, e pivoted bracket upon which the pinion and driving wheel are mounted, e slotted transverse casing upon the bracket, e slide Within the casing upon which the idle Wheel is mounted, ai' 'pivoted arm, links connecting the pivoted arm to the bracket and memes slide respectively, and means for operating the bracket upon its pivot.

2. In cinematograph apparatus, masking mechanism comprising a sprocket wheel and spindle, a film fed through the apparatus by the sprocket wheel, a pinion fixed to the spindle, an idle Wheel gearing with the pinion, a driving wheel gearing ith the idle Wheel, a pivoted bracket pon which the pinion and driving Wheel are mounted, a slotted transverse casing upon the bracket, a slide Within the casing upon'vvhich the idle wheel is mounted, a pivoted arm, links connecting the pivoted arm to the bracket and slide respectively, an operating lever having a boss, a split ring secured within the boss by a screw, and fitting a pivot and upon which the lever is fulcrumed, a screw fitting the stem of the lever and adapted to lock the lever, and a link connecting the short end of the lever to the bracket.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

WALTER HILLIER ANDERSON Witnesses BERTRAM 1i. MATTHEWS WILLIAM H. Bnzn, 

